Hello,
Yes, I have experienced what you have. I couldn't be around people for a long time but it has gotten much better! SOOOOOO much better and it will for you too
Because PCS is so hard just remember to be nice to yourself. I would get discouraged and have breakdowns frequently but would try not to feel bad about them. Sometimes I would need just one thing that I hoped for in life to look forward to.
I try to picture myself going up stairs with a yoyo.
Even though I am having a horrible few weeks I am still on the same "step" just my yoyo is going down.
It sounds silly but it helps. Best wishes!